Campaign data quality · for B2B marketing teams
Your GA4 is quietly lying to you.
"Facebook," "facebook," and "FB" become three separate rows in GA4 — so your best channel looks like three mediocre ones and every budget call rests on split data. Tagsmith enforces one naming spec at the moment links are built, so campaigns stop fragmenting and your reports finally add up.
?utm_source=facebook&utm_medium=paid-social&utm_campaign=summersale
A look inside
See the governance in action
The builder blocks off-spec values, the audit scores your back-catalog, and insights show what your team is really tagging.
Built for the people who feel the pain
Governance, not just another link builder
Free UTM builders assemble a string. Tagsmith enforces a standard across your whole team — which is the part that actually keeps your data clean.
Enforced taxonomy
Define the allowed sources, mediums, and a campaign naming pattern. Lock it, and off-spec links are blocked — not just flagged.
Pattern & rules
Govern campaign structure (region_quarter_initiative_type), require a term for paid mediums, restrict source→medium pairs.
Audit existing links
Paste the URLs already running and see exactly how much is off-spec, with a compliance score. Clean up the back-catalog.
Browser extension
Build governed links from any tab, where links are actually born — validated and saved to the shared library in two clicks.
Team workspace
Admins set the spec; everyone builds within it. Invite teammates, manage roles, approve requests, and keep a full audit trail.
Insights
See what your team is actually tagging — top campaigns, sources, creators, and activity over time, in one dashboard.
Why it matters
The hidden tax of UTM chaos
"At quarter-end I find out that Email, email, and eml are three rows in GA4 — and the board deck is wrong. Lowercase-forcing alone kills a whole class of my problems."
"I've bought beautiful tools that died at 20% adoption. The one that works lives where the work happens — a browser extension, not another tab to remember."
How it works
Set the standard once. Enforce it forever.
Define your spec
Set allowed values and a campaign naming pattern. Lock it so it can't drift.
Your team builds within it
Everyone builds links in the app or the extension — off-spec links are blocked at the source.
Clean data, by default
Every link lands in a shared, audited library. Your analytics finally lines up.
Pricing
Priced per workspace, not per seat
Governance only works when your whole team is on it — so we never charge you more for adding people.
Free
- Governed link builder + pattern validation
- Audit, bulk & CSV, GA4-ready export
- For solo use
Team workspace
- Shared library & real-time governance
- Roles, invites, request→approve
- Browser extension & Insights dashboard
- Audit trail across the whole team
Enterprise
- Everything in Team
- SSO / SAML / SCIM
- Security review, DPA, data residency
- SLA, invoicing & procurement
Questions about security or procurement? See our security overview.
The cost of chaos
What dirty UTMs cost you
A rough estimate of the ad spend you can't trust because attribution is fragmented.
FAQ
Questions, answered
What is UTM governance?
UTM governance is the practice of defining a single, allowed set of UTM values (sources, mediums) and a campaign naming pattern, then enforcing it for everyone who builds links. Instead of hoping people follow a spreadsheet convention, governance blocks off-spec links at the point of creation so your analytics stays consistent.
How is Tagsmith different from a free UTM builder?
Free UTM builders assemble a query string for one person. Tagsmith enforces a shared standard across your whole team: it locks the allowed sources, mediums and campaign pattern, blocks values that don't match, and saves every link to one audited library. Enforcement across people is the part that actually keeps data clean.
Does Tagsmith work with GA4 and other analytics tools?
Yes. Tagsmith governs standard utm_source, utm_medium, utm_campaign, utm_term and utm_content parameters, so the links work anywhere that reads UTMs — GA4, Adobe, Amplitude, and most ad and email platforms. Clean, consistent UTMs mean fewer duplicate rows in GA4.
Can I clean up the messy UTM links we already have?
Yes. Paste the URLs already running into the Audit tool and Tagsmith scores how much of your back-catalog is off-spec, flags each issue, and suggests corrections for links that are close to a valid value.
Where does my data live and is it secure?
Tagsmith stores your governance spec and link library in a Postgres database with encryption in transit. Passwords are hashed with bcrypt, sessions are httpOnly cookies, and the Enterprise plan adds SSO/SAML, a DPA, data-residency options and a security review. See our security overview.
How does Tagsmith's pricing work?
Solo use is free. The Team workspace is a flat $149/month (or $1,490/year) for unlimited seats — governance only works when the whole team is on it, so we never charge per seat. Enterprise is custom.
Do I need to install anything?
No install is required — Tagsmith runs in the browser. An optional browser extension lets your team build governed links from any tab, where links are actually born.
Who's behind Tagsmith
Tagsmith is built by a growth operator who spent years watching clean attribution die one careless UTM at a time — three spellings of "email" in GA4, a board deck built on numbers nobody trusted, and yet another link-builder spreadsheet no one followed.
The bet is simple: the only convention people follow is the one that's enforced where they actually work. So Tagsmith puts the governance in the builder and the browser, not in a wiki page. It's built deliberately small, fast, and honest about what it does.
Have a question, a rough edge, or a feature you need? Email sales@gettagsmith.com — it goes straight to the person who builds it.